The greenhouse gas carbon dioxide to
a. deflect harmful radiation from space.
b. increase precipitation in arid areas.
c. form clouds in the atmosphere.
d. maintain warmth near earth’s surface

Who developed the theory of plate tectonics?

If you were a casual recreational hiker with young children, which of the following trails would be least strenuous for a leisurely family outing? a. merced lake trail b. mirror lake loop trail. c. tenaya lake and tuolumne meadows trail d. el capitan trail

Explain the differences between convergent, divergent, and transform fault boundaries.